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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:18:59
WDS:
BU932AB
WDS ID/Discoverer
P:
177.700
Orbital period (years)
a:
0.531
Semi-major axis (arcseconds)
i:
70.4
Inclination (degrees)
Ω:
117.7
Longitude of ascending node (degrees)
T:
1921.870
Epoch of periastron passage (year)
e:
0.925
Eccentricity
ω:
103.6
Longitude of periastron (degrees)
Start-Year:
1937.0
Year
End-Year:
2113.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
133440.48-131251.5
Epoch-2000 right ascension and declination
WDS-ID:
13347-1313
WDS designation
Discoverer Code:
BU932AB
Discover designation and components
ADS number:
8954
Aitken Double Star catalog
HD number:
118054
HD catalog number
Hipparcos number:
66247
Hipparcos catalog number
V1:
6.30
Magnitude of the primary
V2:
7.29
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2009
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.432 69.3
-------------------------
1937.0 0.182 356.6
1938.0 0.186 358.8
1939.0 0.189 0.8
1940.0 0.193 2.8
1941.0 0.197 4.8
1942.0 0.201 6.6
1943.0 0.204 8.4
1944.0 0.208 10.1
1945.0 0.212 11.7
1946.0 0.215 13.3
1947.0 0.219 14.9
1948.0 0.223 16.4
1949.0 0.226 17.8
1950.0 0.230 19.2
1951.0 0.234 20.6
1952.0 0.237 21.9
1953.0 0.241 23.2
1954.0 0.245 24.4
1955.0 0.248 25.6
1956.0 0.252 26.8
1957.0 0.255 27.9
1958.0 0.259 29.0
1959.0 0.263 30.1
1960.0 0.266 31.1
1961.0 0.270 32.1
1962.0 0.273 33.1
1963.0 0.277 34.1
1964.0 0.280 35.0
1965.0 0.284 35.9
1966.0 0.287 36.8
1967.0 0.291 37.7
1968.0 0.294 38.5
1969.0 0.298 39.4
1970.0 0.301 40.2
1971.0 0.304 41.0
1972.0 0.308 41.8
1973.0 0.311 42.5
1974.0 0.314 43.3
1975.0 0.317 44.0
1976.0 0.321 44.7
1977.0 0.324 45.4
1978.0 0.327 46.1
1979.0 0.330 46.8
1980.0 0.333 47.4
1981.0 0.336 48.1
1982.0 0.339 48.7
1983.0 0.342 49.4
1984.0 0.345 50.0
1985.0 0.348 50.6
1986.0 0.351 51.2
1987.0 0.354 51.8
1988.0 0.357 52.3
1989.0 0.360 52.9
1990.0 0.363 53.5
1991.0 0.365 54.0
1992.0 0.368 54.5
1993.0 0.371 55.1
1994.0 0.373 55.6
1995.0 0.376 56.1
1996.0 0.378 56.6
1997.0 0.381 57.1
1998.0 0.383 57.6
1999.0 0.386 58.1
2000.0 0.388 58.6
2001.0 0.391 59.1
2002.0 0.393 59.6
2003.0 0.395 60.0
2004.0 0.397 60.5
2005.0 0.399 61.0
2006.0 0.402 61.4
2007.0 0.404 61.9
2008.0 0.406 62.3
2009.0 0.408 62.8
2010.0 0.410 63.2
2011.0 0.411 63.6
2012.0 0.413 64.0
2013.0 0.415 64.5
2014.0 0.417 64.9
2015.0 0.418 65.3
2016.0 0.420 65.7
2017.0 0.422 66.1
2018.0 0.423 66.5
2019.0 0.425 66.9
2020.0 0.426 67.4
2021.0 0.427 67.8
2022.0 0.429 68.1
2023.0 0.430 68.5
2024.0 0.431 68.9
2025.0 0.432 69.3
2026.0 0.433 69.7
2027.0 0.434 70.1
2028.0 0.435 70.5
2029.0 0.436 70.9
2030.0 0.437 71.3
2031.0 0.438 71.6
2032.0 0.438 72.0
2033.0 0.439 72.4
2034.0 0.440 72.8
2035.0 0.440 73.1
2036.0 0.441 73.5
2037.0 0.441 73.9
2038.0 0.441 74.3
2039.0 0.441 74.6
2040.0 0.442 75.0
2041.0 0.442 75.4
2042.0 0.442 75.8
2043.0 0.441 76.1
2044.0 0.441 76.5
2045.0 0.441 76.9
2046.0 0.441 77.3
2047.0 0.440 77.6
2048.0 0.440 78.0
2049.0 0.439 78.4
2050.0 0.438 78.8
2051.0 0.437 79.1
2052.0 0.436 79.5
2053.0 0.435 79.9
2054.0 0.434 80.3
2055.0 0.433 80.7
2056.0 0.432 81.1
2057.0 0.430 81.5
2058.0 0.428 81.9
2059.0 0.427 82.3
2060.0 0.425 82.7
2061.0 0.423 83.1
2062.0 0.421 83.5
2063.0 0.419 83.9
2064.0 0.416 84.3
2065.0 0.414 84.7
2066.0 0.411 85.2
2067.0 0.408 85.6
2068.0 0.405 86.0
2069.0 0.402 86.5
2070.0 0.398 86.9
2071.0 0.395 87.4
2072.0 0.391 87.9
2073.0 0.387 88.4
2074.0 0.383 88.8
2075.0 0.378 89.3
2076.0 0.373 89.9
2077.0 0.368 90.4
2078.0 0.363 90.9
2079.0 0.358 91.5
2080.0 0.352 92.1
2081.0 0.345 92.7
2082.0 0.339 93.3
2083.0 0.332 93.9
2084.0 0.324 94.6
2085.0 0.316 95.3
2086.0 0.308 96.1
2087.0 0.298 96.9
2088.0 0.289 97.7
2089.0 0.278 98.6
2090.0 0.266 99.6
2091.0 0.254 100.7
2092.0 0.240 101.9
2093.0 0.225 103.2
2094.0 0.207 104.8
2095.0 0.188 106.7
2096.0 0.164 109.0
2097.0 0.136 112.2
2098.0 0.099 117.6
2099.0 0.043 133.8
2100.0 0.045 288.8
2101.0 0.085 306.3
2102.0 0.106 314.2
2103.0 0.119 320.0
2104.0 0.128 324.7
2105.0 0.136 328.9
2106.0 0.143 332.6
2107.0 0.148 336.1
2108.0 0.154 339.3
2109.0 0.158 342.3
2110.0 0.163 345.1
2111.0 0.167 347.8
2112.0 0.171 350.3
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory .
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